2311312212113 has 16 divisors (see below), whose sum is σ = 2494169005824. Its totient is φ = 2133860578560.

The previous prime is 2311312212109. The next prime is 2311312212137. The reversal of 2311312212113 is 3112122131132.

It is a happy number.

It is not a de Polignac number, because 2311312212113 - 2² = 2311312212109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2311312212413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2655995 + ... + 3417152.

It is an arithmetic number, because the mean of its divisors is an integer number (155885562864).

Almost surely, 2^{2311312212113} is an apocalyptic number.

It is an amenable number.

2311312212113 is a deficient number, since it is larger than the sum of its proper divisors (182856793711).

2311312212113 is a wasteful number, since it uses less digits than its factorization.

2311312212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6073592.

The product of its digits is 432, while the sum is 23.

Adding to 2311312212113 its reverse (3112122131132), we get a palindrome (5423434343245).

The spelling of 2311312212113 in words is "two trillion, three hundred eleven billion, three hundred twelve million, two hundred twelve thousand, one hundred thirteen".